505351444550 has 48 divisors (see below), whose sum is σ = 1016166218640. Its totient is φ = 186325868160.

The previous prime is 505351444547. The next prime is 505351444583. The reversal of 505351444550 is 55444153505.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505351444498 and 505351444507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7153349 + ... + 7223648.

It is an arithmetic number, because the mean of its divisors is an integer number (21170129555).

Almost surely, 2^505351444550 is an apocalyptic number.

505351444550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505351444550 is an abundant number, since it is smaller than the sum of its proper divisors (510814774090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505351444550 is a wasteful number, since it uses less digits than its factorization.

505351444550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14377065 (or 14377060 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 505351444550 in words is "five hundred five billion, three hundred fifty-one million, four hundred forty-four thousand, five hundred fifty".